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Elaborating, she said that “it’s just fantastic to have him here and support the film. We’re working things out. And he’s always and will remain my closest friend in the world, so, you know, so it’s good.”

Admittedly, she added, “Yeah, we’ve had a rough ride, so that is good That’s very good.”

Earlier this month, press photos originating from Britain displayed the couple’s reuniting. On Nov. 2, the two – who initially became engaged last Christmas – made their first public appearance together in six weeks, following what had been termed a permanent rift after reported claims of infidelity on both sides: Law, 32, with his children’s nanny Daisy Wright, and Miller, 23, with new James Bond star Daniel Craig.

That public reunion occurred over lunch at the London restaurant Raoul’s – near Law’s home in the Maida Vale section of town – though there was a third wheel at the table: Sienna’s mom, Josephine.

Last month a source close to the couple told PEOPLE of the rocky relationship, “I think they are equally smitten with each other.”

Still, at the time another source close to the actor said Law and Miller had not rekindled their engagement, and added, “Their relationship is over.”